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[HBASE-9133] Use table dir modtime to avoid scanning table dir to check cached table descriptor - HBase - [issue]
...As described in HBASE-8778, anything that needs to read table descriptors (such as region assignments) currently results in a table directory scan which is slow on tables with many regions. ...
http://issues.apache.org/jira/browse/HBASE-9133    Author: Dave Latham, 2013-08-06, 04:48
HRegion heapSize out of date - HBase - [mail # dev]
...While working on HBASE-8877 I noticed that HRegion.heapSize was missing many things.  I fixed FIXED_OVERHEAD as part of the issue, but didn't try to fix about a dozen missing fields fro...
   Author: Dave Latham, 2013-07-29, 22:33
removing lock ids from RegionObserver - HBase - [mail # dev]
...In HBASE-8877 I'm proposing to change row locks to be reentrant and thread based rather than tracking lock ids.  Part of that change would mean altering the RegionObserver coprocessor. ...
   Author: Dave Latham, 2013-07-06, 21:49
[expand - 1 more] - Re: data loss after cluster wide power loss - HBase - [mail # user]
...On Mon, Jul 1, 2013 at 4:52 PM, Azuryy Yu  wrote:  Set dfs.datanode.synconclose to true  See https://issues.apache.org/jira/browse/HDFS-1539...
   Author: Dave Latham, 2013-07-02, 00:34
region opening slow on large tables - HBase - [mail # dev]
...I'd really appreciate some input on HBASE-8778 from the developers.  Short summary: When opening regions, the region server (via FSTableDescriptors) scans the entire table directory to ...
   Author: Dave Latham, 2013-06-24, 17:32
[HBASE-8605] Backport HBASE-6921 to 0.94 - HBase - [issue]
...HBASE-8014 ported FLURRY-6915 to 0.94 but FLURRY-6921 extended the work of FLURRY-6915 so should also be backported....
http://issues.apache.org/jira/browse/HBASE-8605    Author: Dave Latham, 2013-05-25, 06:23
[HBASE-8025] zkcli fails when SERVER_GC_OPTS is enabled - HBase - [issue]
...HBASE-7091 added logic to separate GC logging options for some client commands versus server commands.  It uses a list of known client commands ("shell" "hbck" "hlog" "hfile" "zkcli") a...
http://issues.apache.org/jira/browse/HBASE-8025    Author: Dave Latham, 2013-03-23, 04:53
patch waiting for HBASE-8025 - HBase - [mail # dev]
...Is anyone available to take a look at (and hopefully commit) the small patch for HBASE-8025?  Thanks, Dave...
   Author: Dave Latham, 2013-03-14, 13:59
patch for HBASE-7153 - HBase - [mail # dev]
...Anyone available to look at (and hopefully commit) the small patch for https://issues.apache.org/jira/browse/HBASE-7153  Dave...
   Author: Dave Latham, 2013-03-07, 03:59
[expand - 2 more] - Re: When replication is stopped, .oldlogs is never cleaned - HBase - [mail # user]
...On Tue, Feb 26, 2013 at 4:23 PM, Jean-Daniel Cryans wrote:   That's a good point.  I guess it comes down to the question of what the purpose of stop_replication is.  Should it...
   Author: Dave Latham, 2013-02-27, 14:45
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB